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      1 /*
      2  * Copyright (C) 2005 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 //
     18 #ifndef ANDROID_ISERVICE_MANAGER_H
     19 #define ANDROID_ISERVICE_MANAGER_H
     20 
     21 #include <binder/IInterface.h>
     22 #include <binder/IPermissionController.h>
     23 #include <utils/Vector.h>
     24 #include <utils/String16.h>
     25 
     26 namespace android {
     27 
     28 // ----------------------------------------------------------------------
     29 
     30 class IServiceManager : public IInterface
     31 {
     32 public:
     33     DECLARE_META_INTERFACE(ServiceManager)
     34 
     35     /**
     36      * Retrieve an existing service, blocking for a few seconds
     37      * if it doesn't yet exist.
     38      */
     39     virtual sp<IBinder>         getService( const String16& name) const = 0;
     40 
     41     /**
     42      * Retrieve an existing service, non-blocking.
     43      */
     44     virtual sp<IBinder>         checkService( const String16& name) const = 0;
     45 
     46     /**
     47      * Register a service.
     48      */
     49     virtual status_t            addService( const String16& name,
     50                                             const sp<IBinder>& service,
     51                                             bool allowIsolated = false) = 0;
     52 
     53     /**
     54      * Return list of all existing services.
     55      */
     56     virtual Vector<String16>    listServices() = 0;
     57 
     58     enum {
     59         GET_SERVICE_TRANSACTION = IBinder::FIRST_CALL_TRANSACTION,
     60         CHECK_SERVICE_TRANSACTION,
     61         ADD_SERVICE_TRANSACTION,
     62         LIST_SERVICES_TRANSACTION,
     63     };
     64 };
     65 
     66 sp<IServiceManager> defaultServiceManager();
     67 
     68 template<typename INTERFACE>
     69 status_t getService(const String16& name, sp<INTERFACE>* outService)
     70 {
     71     const sp<IServiceManager> sm = defaultServiceManager();
     72     if (sm != NULL) {
     73         *outService = interface_cast<INTERFACE>(sm->getService(name));
     74         if ((*outService) != NULL) return NO_ERROR;
     75     }
     76     return NAME_NOT_FOUND;
     77 }
     78 
     79 bool checkCallingPermission(const String16& permission);
     80 bool checkCallingPermission(const String16& permission,
     81                             int32_t* outPid, int32_t* outUid);
     82 bool checkPermission(const String16& permission, pid_t pid, uid_t uid);
     83 
     84 }; // namespace android
     85 
     86 #endif // ANDROID_ISERVICE_MANAGER_H
     87 
     88